| 标题 | GNU Binutils 2.47 Memory Corruption |
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| 描述 | A vulnerability was found in GNU Binutils 2.47. The ld linker has an assertion failure in _bfd_elf_strtab_delref (bfd/elf-strtab.c:200) when linking malformed ELF files with --version-exports-section symbol --shared options. When processing malformed versioned symbols, the function triggers BFD_ASSERT on inconsistent string table entries causing SEGV. Reproducer: ld --version-exports-section symbol --shared -o /dev/null bug_13.o (with PoC file). Stack trace: #0 _bfd_elf_strtab_delref bfd/elf-strtab.c:200, #1 _bfd_elf_link_hash_hide_symbol bfd/elflink.c:8344, #2 _bfd_x86_elf_hide_symbol bfd/elfxx-x86.c:3659, #3 _bfd_elf_link_hide_sym_by_version bfd/elflink.c:2644, #4 _bfd_x86_elf_link_symbol_references_local bfd/elfxx-x86.c:3695. |
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| 来源 | ⚠️ https://sourceware.org/bugzilla/show_bug.cgi?id=34454 |
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| 用户 | wsstssw (UID 100468) |
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| 提交 | 2026-08-12 03時16分 (1 月前) |
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| 管理 | 2026-09-13 21時21分 (1 month later) |
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| 状态 | 已接受 |
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| VulDB条目 | 403333 [GNU Binutils 2.47 ELF String Table bfd/elf-strtab.c _bfd_elf_strtab_delref 内存损坏] |
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| 积分 | 20 |
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